<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<script type="text/javascript" src="jquery.min.js">

		</script>
	</head>
	<body>
		<button type="button">看看看看</button>
		<button type="button">看看看看</button>
		<button type="button">看看看看</button>
		<button type="button">看看看看</button>
		<button type="button">看看看看</button>
		<button type="button">看看看看</button>
		<button type="button">看看看看</button>
		<button type="button">看看看看</button>
		<button type="button">看看看看</button>
		<button type="button">看看看看</button>
	</body>
	<script type="text/javascript">
		$(function() {
			$('button').click(function() {
				//其他button兄弟
				$(this).siblings('button').css('background', 'red');
				$(this).css('background', 'none');
			})
		})
	</script>
</html>
